CN202322096U - Crane mast retracting device and crawler crane - Google Patents
Crane mast retracting device and crawler crane Download PDFInfo
- Publication number
- CN202322096U CN202322096U CN2011204539395U CN201120453939U CN202322096U CN 202322096 U CN202322096 U CN 202322096U CN 2011204539395 U CN2011204539395 U CN 2011204539395U CN 201120453939 U CN201120453939 U CN 201120453939U CN 202322096 U CN202322096 U CN 202322096U
- Authority
- CN
- China
- Prior art keywords
- mast
- sensor
- crane
- jacking
- packed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses a crane mast retracting device and a crawler crane containing the same. The crane mast retracting device comprises a mast (1), a hoist (2), a variable-amplitude wire rope (3) for pulling the mast to pivot, a lifting hydraulic cylinder component and a controller, wherein one end of the variable-amplitude wire rope is connected with the mast, and the other end is connected to the hoist; the lifting hydraulic cylinder component comprises a lifting hydraulic cylinder (4) and a lifting support (5); one end of the lifting hydraulic cylinder is hinged with one end of the lifting support; the other end of the lifting support is hinged with the mast; the mast is provided with a first sensor for detecting a pivoting position of the mast; the lifting support is provided with a second sensor (6) for sensing whether the lifting support contacts the mast; and the controller is electrically connected with the first sensor and the second sensor, and used for controlling the hoist according to signals of the first sensor and the second sensor. The utility model can ensure the retracting safety of the mast.
Description
Technical field
The utility model relates to hoisting crane, particularly, relates to a kind of crane mast and packs up device and comprise that this crane mast packs up the crawler crane of device.
Background technology
Hoisting crane (particularly crawler crane) is provided with mast usually, and mast is spacing through preceding arm-tie during use, promptly rotates backward through preceding arm-tie restriction mast.During break-down crane, need at first mast and preceding arm-tie to be broken off the pulling force that the mast that lifts restrictions rotates backward; Mast pivots through the luffing rope luffing backward then, and wherein, the two ends of luffing steel rope are connected to mast and winch, pivots backward with pulling mast under the rolling effect of winch.When mast is pivoted to predetermined angular under the pulling of luffing steel rope, need to support mast through the jacking hydraulic pressure cylinder assembly, pivot until setting level with the continuation of assisting mast.Particularly, the jacking hydraulic pressure cylinder assembly comprises jacking hydraulic actuating cylinder and jacking support, and an end of jacking hydraulic actuating cylinder is fixed on the brace foundation (for example dismantling platform), and an end of the other end and jacking support is hinged, and the other end of jacking support is articulated in mast.In rolling luffing steel rope,, mast is pivoted until setting level reposefully through shrinking the jacking hydraulic actuating cylinder.
Therefore, when mast was pivoted to predetermined angular backward, the jacking hydraulic actuating cylinder should stretch out and contact with mast through the jacking support, to support mast.Whether in the prior art, need the artificial jacking hydraulic actuating cylinder of when mast is pivoted to predetermined angular backward, observing mast to stretch out and put in place, promptly whether the jacking support contacts with mast.Forget when observing that when operating personal in the time of mast possibly occurring and fall backward, the jacking hydraulic actuating cylinder does not stretch out, and causes the jacking support to fail to withstand mast in the desired location, cause mast directly to fall down and damage.
The utility model content
The purpose of the utility model provides a kind of crane mast that can pack up mast safely and packs up device.
To achieve these goals; The utility model provides a kind of crane mast to pack up device; Said crane mast is packed up device and is comprised mast, winch, is used to spur luffing steel rope and the jacking hydraulic pressure cylinder assembly that said mast pivots; One end of said luffing steel rope is connected in said mast, and the other end is connected in said winch, and said jacking hydraulic pressure cylinder assembly comprises jacking hydraulic actuating cylinder and jacking support; One end of said jacking hydraulic actuating cylinder and an end of said jacking support are hinged; The other end of said jacking support and said mast are hinged, and wherein, said mast is provided with the first sensor of the pivot position that is used to detect said mast; Said jacking support is provided with and is used for second the sensor whether said jacking support of sensing contacts with said mast, and said crane mast is packed up device and also comprised and being connected with said second sensor electrical with said first sensor and according to the controller of the said winch of signal control of said first sensor and said second sensor.
Preferably, said second sensor is arranged on said jacking support and said jacking hydraulic actuating cylinder pivotally attached one end.
Preferably, said jacking hydraulic pressure cylinder assembly comprises and is used to control the control unit that said jacking hydraulic actuating cylinder stretches that this control unit is electrically connected with said controller.
Preferably, said crane mast is packed up device and is comprised alarm unit, and this alarm unit is electrically connected with said controller.
Preferably, said first sensor is an angular transducer, and said second sensor is rang sensor or pressure sensor.
The utility model also provides a kind of crawler crane, and this crawler crane comprises that crane mast packs up device, and wherein, it is that the crane mast of the utility model is packed up device that said crane mast is packed up device.
Pass through technique scheme; Can obtain the pivot position of mast through first sensor; When mast is pivoted to critical spot, judge that through second sensor whether mast contacts with the jacking support, then continues to furl the luffing steel rope through winch when mast contacts with the jacking support; When mast does not contact with the jacking support; Then stop to furl the luffing steel rope,, stretch out and the jacking support is contacted with mast again up to the jacking hydraulic actuating cylinder and continue the mast that fell through continuing to furl the luffing steel rope so that mast remains on critical spot.Therefore, the crane mast of the utility model is packed up the safety that device can guarantee that mast is packed up.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification sheets, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation that the crane mast of explanation the utility model is packed up a kind of embodiment of device, and its middle mast just contacts with the jacking support;
Fig. 2 is the auxiliary scheme drawing that down continue fell of mast at the jacking hydraulic pressure cylinder assembly;
Fig. 3 is the local structure scheme drawing that the crane mast of explanation the utility model is packed up a kind of embodiment of device.
Description of reference numerals
1: mast 2: winch 3: luffing steel rope 4: the jacking hydraulic actuating cylinder
5: 6: the second sensors of jacking support
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
In the utility model, not do under the situation of opposite explanation, the noun of locality of use typically refers to reference to upper and lower, left and right shown in the drawings like " upper and lower, left and right "; " inside and outside " is meant inside and outside with respect to the profile of each parts itself.Indication pivots mast to refer to that frontal plane and back plane are respectively right side and left side horizontal surface among Fig. 1 to Fig. 3 referring to figs. 1 through mast is pivoted towards the left side backward among this paper.In addition; Critical spot for the jacking hydraulic actuating cylinder stretch out put in place after, mast 1 when pivoting backward just with jacking support position contacting, according to the mast 1 of different model; Critical spot maybe be different, for example can be that mast 1 is pivoted to the position that is the 90-100 degree with back plane.
An aspect according to the utility model; Provide a kind of crane mast to pack up device; Said crane mast is packed up device and is comprised mast 1, winch 2, is used to spur luffing steel rope 3 and the jacking hydraulic pressure cylinder assembly that said mast 1 pivots; One end of said luffing steel rope 3 is connected in said mast 1; The other end is connected in said winch 2; Said jacking hydraulic pressure cylinder assembly comprises jacking hydraulic actuating cylinder 4 and jacking support 5, and an end of said jacking hydraulic actuating cylinder 4 and an end of said jacking support 5 are hinged, and the other end of said jacking support 5 and said mast 1 are hinged; Wherein, Said mast 1 is provided with the first sensor (not shown) of the pivot position that is used to detect said mast 1, and said jacking support 5 is provided with and is used for second the sensor 6 whether said jacking support 5 of sensing contacts with said mast 1, and said crane mast is packed up device and also comprised and being electrically connected with said first sensor and said second sensor 6 and according to the controller of the said winch 2 of signal control of said first sensor and said second sensor 6.
Obtain the pivot position of mast 1 through first sensor, when mast 1 is pivoted to critical spot, judge through second sensor 6 whether mast 1 contacts with jacking support 5, carry out different operation according to judging then, with the safety of guaranteeing that mast is packed up.
Particularly, as shown in Figure 1 when second sensor 6 senses mast 1 when contacting with jacking support 5 when mast 1 is pivoted to critical spot, controller continues control winch 2 and furls luffing steel rope 3, and is as shown in Figure 2, to continue packing up mast 1 until setting level; When mast 1 does not contact with jacking support 5; Explain that jacking hydraulic actuating cylinder 4 does not stretch out and put in place; As shown in Figure 3, then controller control winch 2 stops to furl luffing steel rope 3, jacking hydraulic actuating cylinder 4 is stretched out put in place; When jacking support 5 contacts with mast 1, control winch 2 again and continue to furl luffing steel rope 3, to pack up mast 1 until setting level.
Wherein, when jacking support 5 does not contact with mast 1, can manual work or electrical equipment control jacking hydraulic actuating cylinder 4 stretch out.For example; Said jacking hydraulic pressure cylinder assembly can comprise and is used to control the flexible control unit of said jacking hydraulic actuating cylinder 4; This control unit can make independent control unit; But preferably be electrically connected, thereby controller can be controlled jacking hydraulic actuating cylinder 4 simultaneously according to the signal of second sensor 6, to realize the cooperation of winch 2 and jacking hydraulic actuating cylinder 4 efficiently with said controller.
In addition, said crane mast is packed up device can comprise alarm unit, and this alarm unit is electrically connected with said controller.Thus, when mast 1 when critical spot fails to contact with jacking support 5, controller can send alerting signal according to the signal control alarm unit of second sensor 6, thereby reminds the operator.The operator according to alerting signal can manually control jacking hydraulic actuating cylinder 4 stretch out or supervisory control device whether stretch out jacking hydraulic actuating cylinder 4 through control unit.
Wherein, jacking hydraulic actuating cylinder 4 stretches out when putting in place, mast 1 critical spot should with the 5 parallel contacts of jacking support, as shown in Figure 1.For guaranteeing that second sensor 6 can very first time sensing jacking support 5 and the contacting of mast 1, can make said second sensor 6 be arranged on said jacking support 5 and said jacking hydraulic actuating cylinder 4 pivotallys attached one end.Because, jacking support 5 with jacking hydraulic actuating cylinder 4 pivotallys attached one end be basically on the jacking support 5 at first with mast 1 position contacting.
In addition, in the utility model, first sensor can be arranged on any suitable position of mast 1, as long as can be convenient to detect the pivot position of mast 1.For example, can detect angle α through first sensor, promptly mast 1 is with respect to the angle of frontal plane, and is as shown in Figure 3.Therefore, said first sensor can be angular transducer, and the utility model does not limit its model.Those skilled in the art also can adopt the sensor of other types and detect the pivot position that other parameters are obtained mast 1.
Same, whether second sensor 6 can be the sensor of all kinds and model, contact with jacking support 5 as long as can detect mast 1.For example, said second sensor 6 can be rang sensor or pressure sensor.Wherein, rang sensor can judge whether the two contacts through the distance between sensing mast 1 and the jacking support 5.Whether pressure sensor can exert pressure to jacking support 5 through sensing mast 1 and judge whether the two contacts.
According to the utility model on the other hand, a kind of crawler crane is provided also, this crawler crane comprises that the crane mast of the utility model packs up device.The crawler crane of the utility model obtains the pivot position of mast 1 through first sensor; When mast 1 is pivoted to critical spot; Judge through second sensor 6 whether mast 1 contacts with jacking support 5, carry out different operation according to judging then, with the safety of guaranteeing that mast is packed up.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (6)
1. a crane mast is packed up device; Said crane mast is packed up device and is comprised mast (1), winch (2), is used to spur luffing steel rope (3) and the jacking hydraulic pressure cylinder assembly that said mast (1) pivots; One end of said luffing steel rope (3) is connected in said mast (1); The other end is connected in said winch (2); Said jacking hydraulic pressure cylinder assembly comprises jacking hydraulic actuating cylinder (4) and jacking support (5); One end of one end of said jacking hydraulic actuating cylinder (4) and said jacking support (5) is hinged; The other end of said jacking support (5) and said mast (1) are hinged, it is characterized in that, said mast (1) is provided with the first sensor of the pivot position that is used to detect said mast (1); Said jacking support (5) is provided with and is used for second sensor (6) whether the said jacking support of sensing (5) contacts with said mast (1), and said crane mast is packed up device and also comprised and being electrically connected with said first sensor and said second sensor (6) and according to the controller of the said winch of signal control (2) of said first sensor and said second sensor (6).
2. crane mast according to claim 1 is packed up device, it is characterized in that, said second sensor (6) be arranged on said jacking support (5) with said jacking hydraulic actuating cylinder (4) pivotally attached one end.
3. crane mast according to claim 1 is packed up device, it is characterized in that, said jacking hydraulic pressure cylinder assembly comprises and be used to control the control unit that said jacking hydraulic actuating cylinder (4) stretches that this control unit is electrically connected with said controller.
4. crane mast according to claim 1 is packed up device, it is characterized in that, said crane mast is packed up device and comprised alarm unit, and this alarm unit is electrically connected with said controller.
5. pack up device according to any described crane mast among the claim 1-4, it is characterized in that said first sensor is an angular transducer, said second sensor (6) is rang sensor or pressure sensor.
6. crawler crane, this crawler crane comprise that crane mast packs up device, it is characterized in that it is that any described crane mast is packed up device in the claim 1～5 that said crane mast is packed up device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204539395U CN202322096U (en) | 2011-11-16 | 2011-11-16 | Crane mast retracting device and crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204539395U CN202322096U (en) | 2011-11-16 | 2011-11-16 | Crane mast retracting device and crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322096U true CN202322096U (en) | 2012-07-11 |
Family
ID=46434086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204539395U Expired - Fee Related CN202322096U (en) | 2011-11-16 | 2011-11-16 | Crane mast retracting device and crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322096U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058060A (en) * | 2013-02-04 | 2013-04-24 | 中联重科股份有限公司 | Method, equipment and system for controlling crane and hoisting arm thereof |
| CN103362492A (en) * | 2013-06-26 | 2013-10-23 | 北京市三一重机有限公司 | Method and system for controlling seating of rotary drilling rig mast |
| CN112140853A (en) * | 2019-06-28 | 2020-12-29 | 鹤壁天海电子信息系统有限公司 | Skylight and lifting mast interlocking device and interlocking method |
| CN112723204A (en) * | 2020-12-30 | 2021-04-30 | 中联重科股份有限公司 | Method and device for controlling rotation of crane mast and crane |
-
2011
- 2011-11-16 CN CN2011204539395U patent/CN202322096U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058060A (en) * | 2013-02-04 | 2013-04-24 | 中联重科股份有限公司 | Method, equipment and system for controlling crane and hoisting arm thereof |
| CN103058060B (en) * | 2013-02-04 | 2015-10-28 | 中联重科股份有限公司 | Hoisting crane and arm control method, equipment and system |
| CN103362492A (en) * | 2013-06-26 | 2013-10-23 | 北京市三一重机有限公司 | Method and system for controlling seating of rotary drilling rig mast |
| CN103362492B (en) * | 2013-06-26 | 2016-08-10 | 北京市三一重机有限公司 | Control method that rotary digging driller mast is taken a seat and control system |
| CN112140853A (en) * | 2019-06-28 | 2020-12-29 | 鹤壁天海电子信息系统有限公司 | Skylight and lifting mast interlocking device and interlocking method |
| CN112723204A (en) * | 2020-12-30 | 2021-04-30 | 中联重科股份有限公司 | Method and device for controlling rotation of crane mast and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202322096U (en) | Crane mast retracting device and crawler crane | |
| US10472214B2 (en) | Crane and method for monitoring the overload protection of such a crane | |
| US10597266B2 (en) | Crane and method for monitoring the overload protection of such a crane | |
| CN202279092U (en) | Engineering machine capable of detecting extension ranges of landing legs | |
| CN202369309U (en) | Self-adaptive balance tower-type crane | |
| CN102602810B (en) | Control device and method of telescopic boom, system and construction machinery | |
| JP3572563B2 (en) | Crane fall prevention apparatus and method | |
| KR20090127518A (en) | Tower crain | |
| CN113003445A (en) | Backward-tilting prevention structure of movable arm tower crane | |
| KR101809618B1 (en) | Crane with overload prevention system | |
| KR101038523B1 (en) | Working radius of crane vehicle control device | |
| CN105692458B (en) | The wind-proof device of large-sized gantry and port gantry crane | |
| CN102424037A (en) | Engineering machinery and operation control method of support leg thereof | |
| CN202542720U (en) | Amplitude-variable jib off working state detection device and crane | |
| CN206203736U (en) | A kind of lorry multifunctional small-size crane | |
| JP2009035386A (en) | Checking device of vehicle for high lift work | |
| CN205616345U (en) | Mechanism of bearing down on one of coiler | |
| JP5384813B2 (en) | Safety equipment for work equipment | |
| WO2017073570A1 (en) | Work machine and engine stopping control device | |
| CN215666739U (en) | Hoisting device with high-voltage early warning function | |
| JP3964513B2 (en) | A stability limit signal generator for truck mounted cranes. | |
| CN215479303U (en) | High spider crane of security | |
| NO782709L (en) | HYDRAULIC ELEVATOR FOR USE ON SHIPS | |
| JP2014069914A (en) | Extension state monitoring device for outrigger jack | |
| CN211491214U (en) | Automobile part checking fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan ZOOMLION Crawler Crane Co., Ltd. Assignor: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Contract record no.: 2013990000373 Denomination of utility model: Crane mast retracting device and crawler crane Granted publication date: 20120711 License type: Exclusive License Record date: 20130703 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20171116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |